Bad day of mudding-engine light problem
A couple days ago I went out mudding in my stock 97 Jeep TJ 4 cylinder 2.5l and went through 6-8 puddles in a row and they only came up about half of my rims but then when I got out onto the main trail my jeep stalled even though my foot was on the clutch. I played around with it until it would stay running then later went on the highway and my engine light came on. Also it still felt like it was going to stall and became really jerky when i was starting off going or if my foot was pressed most of the way down on the gas. I checked the engine light issue and it gave me 3 codes. P0121, P0123 and P0303. The P0303 says there was a cylinder 3 misfire detected so I changed all my spark plugs today because they needed to be done anyways but the issue is still the same. The P0121 code involves the Throttle position sensor range and performance and the other is the TPS sensor high input circuit. I have no experience with the TPS unit, don't know what it looks like or where it is located. Wondering if anyone else had this same issue and could offer some much needed advice.